Airplane Factory SLING 4
Pilot Operating Handbook
Page | 7-29
DC-POH-001-X-C-3
Revision : 1.3
Charge system
Refer to paragraph 7.19.1. The alternating current (AC) output of the
engine driven alternator is routed to a rectifier / regulator where it is
converted (rectified) and regulated, to provide direct current (DC) output
available to the aircraft systems (e.g. to charge the main battery). Charge
system output is approximately 13.5 to 14 V DC (from 1000 ±250 rpm and
higher).
The charge system output is connected to the battery / main bus via a
charge relay. Refer to paragraph 7.19.1. The charge relay coil is powered
from the main bus (i.e. needs power from the main bus to remain
energized / closed):
Loss or removal (switching the Master switch off) of power to the
main bus will result in the charge relay de-energizing and
disconnecting the charge system output from the battery / main bus.
Failure (i.e. the relay contact opening) of the charge relay will disconnect
the charge system from the battery / main bus. The main bus / system
voltage (indication on EFIS) could show a reduced reading.
Alternator failure indication
The electrical system incorporates an AC generator (alternator) / charge
light located on the upper left side of the instrument panel (refer to
paragraph 7.12). The light will illuminate if there is an AC generator
(alternator) failure.
Summary of Contents for SLING 4
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